{"id":15027,"date":"2026-02-19T05:01:49","date_gmt":"2026-02-18T20:01:49","guid":{"rendered":"https:\/\/m365jp.net\/?p=15027"},"modified":"2026-02-19T05:06:14","modified_gmt":"2026-02-18T20:06:14","slug":"mc1166867-updated-microsoft-defender-for-office-365-enhancing-the-quarantine-email-preview-experience-2","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-02-19-mc1166867-updated-microsoft-defender-for-office-365-enhancing-the-quarantine-email-preview-experience-2","title":{"rendered":"MC1166867 | (Updated) Microsoft Defender for Office 365: Enhancing the quarantine email preview experience"},"content":{"rendered":"
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MC1166867 | (Updated) Microsoft Defender for Office 365: Enhancing the quarantine email preview experience<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n
Classification<\/th>\nstayInformed<\/td>\n<\/tr>\n
Last Updated<\/th>\n02\/18\/2026 19:25:55<\/td>\n<\/tr>\n
Start Time<\/th>\n10\/06\/2025 23:14:57<\/td>\n<\/tr>\n
End Time<\/th>\n02\/27\/2026 08:00:00<\/td>\n<\/tr>\n
Message Content<\/th>\n\n

Updated February 18, 2026: We have updated the content. Thank you for your patience. <\/p>\n

We\u2019re improving the email preview experience in Microsoft Defender for Office 365 to provide a clearer, more consistent, and secure workflow. These updates are designed to reduce ambiguity, simplify interactions, and reinforce security protections\u2014helping organizations confidently use this feature as part of their protection strategy.<\/p>\n

When this will happen:<\/b><\/p>\n

General Availability (Worldwide): <\/b>Rollout will begin in early November 2025 (previously mid-October) and is expected to complete by mid-December 2025 (previously early November).<\/p>\n

General Availability (GCC, GCCH, and DoD): <\/b>Rollout will begin in mid-November 2025 (previously late October) and is expected to complete by mid-December 2025 (previously mid-November).<\/p>\n

How this affects your organization:<\/b><\/p>\n

Who is affected: Quarantine users Microsoft Defender for Office 365 with access to review and preview messages within quarantine.<\/p>\n

The update is specifically for the preview capability within the quarantine experience. What will happen:<\/p>\n

    \n
  • The update consists of three main parts:\n
      \n
    • Streamlined view options: <\/b>The plain text view option will be retired for users to unify preview behaviors across Defender experiences. It will still be present for admins.<\/li>\n
    • Clearer handling of URLs: <\/b>The hover-over preview for URLs will be limited for users to reinforce that links in quarantine preview are not clickable.<\/li>\n
    • Simplified content loading:<\/b> The \u201cLoad external content<\/i>\u201d button will be removed for some scenarios. Content will render in a secure, isolated environment.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

      Quarantine users will experience a simplified preview interface with clearer rendering and reduced visual cues for URL interactivity:<\/p>\n

       \"user<\/p>\n<\/p>\n

      What you can do to prepare:<\/b><\/p>\n

        \n
      • Update any internal documentation that references the quarantine preview experience.<\/li>\n
      • Communicate these changes to helpdesk and support teams to reduce confusion.<\/li>\n
      • No configuration changes are required; the update will apply automatically.<\/li>\n<\/ul>\n

        Compliance considerations:<\/b><\/p>\n

        No compliance considerations identified, review as appropriate for your organization.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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